WO2019101155A1 - 一种非授权频谱中确定参考子帧的方法及装置 - Google Patents

一种非授权频谱中确定参考子帧的方法及装置 Download PDF

Info

Publication number
WO2019101155A1
WO2019101155A1 PCT/CN2018/117115 CN2018117115W WO2019101155A1 WO 2019101155 A1 WO2019101155 A1 WO 2019101155A1 CN 2018117115 W CN2018117115 W CN 2018117115W WO 2019101155 A1 WO2019101155 A1 WO 2019101155A1
Authority
WO
WIPO (PCT)
Prior art keywords
subframe
value
subframes
terminal device
contention window
Prior art date
Application number
PCT/CN2018/117115
Other languages
English (en)
French (fr)
Inventor
李晓翠
徐凯
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201810151870.7A external-priority patent/CN109842467A/zh
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2019101155A1 publication Critical patent/WO2019101155A1/zh

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method and apparatus for determining a reference subframe in an unlicensed spectrum.
  • the spectrum used in wireless communication systems is divided into a licensed spectrum and an unlicensed spectrum.
  • the unlicensed spectrum is free of spectrum resources and can be used by any user.
  • the terminal device uses the resources in the unlicensed spectrum to send the uplink data
  • the contention windows (CW) is A key parameter in the backoff mechanism, whose value determines the backoff time required for the terminal device to use the resources in the unlicensed spectrum to send the uplink data. For example, if the value of the CW is set too large, the backoff time required by the terminal device may be too long. Therefore, the delay of uplink data transmission is large, and even the uplink data transmission fails.
  • the terminal device adjusts the value of the CW based on a new data indicator (NDI) corresponding to the reference subframe, where the reference subframe is determined according to the following rules, if the terminal device is in the subframe n0.
  • the uplink data is sent on n1, n2, ..., nk.
  • the reference subframe is the first subframe n0, and the subframes n0, n1.
  • the reference subframe is the last subframe nk.
  • the subframe structure in the enhanced enhancement-assisted access (FeLAA) further enhanced by long term evolution (LTE) is as shown in FIG. 1 and includes 14 symbols, wherein the first 7 symbols are first.
  • the time slot, the last 7 symbols are the second time slot, and the starting position of the terminal device for transmitting the uplink data is added with the symbol 7 in addition to the symbol 0, and the starting position of the terminal device for transmitting the uplink data is
  • symbol 7 the first seven symbols of the subframe n0 are punctured, and the uplink data cannot be transmitted.
  • the base station demodulates the uplink data sent on the reference subframe.
  • the embodiment of the present invention provides a method and a device for determining a reference subframe in an unlicensed spectrum, which helps to improve the reliability of demodulation of uplink data sent by a base station to a reference subframe to a certain extent.
  • the embodiment of the present application provides a method for determining a reference subframe in an unlicensed spectrum, including:
  • the terminal device Determining, by the terminal device, a starting position for transmitting uplink data, where the starting position is a starting boundary of a second time slot of a first subframe of consecutive N subframes for transmitting uplink data, the first The subframe is a subframe that is ranked first in chronological order among the N subframes, and the second slot is the next slot adjacent to the first slot in the first subframe, and the first slot is The first subframe is chronologically ranked in the first slot, N is a positive integer greater than 1, and then the terminal device determines that at least one of the N subframes is a reference subframe; the reference subframe includes N subframes A sub-frame other than the first sub-frame.
  • the reference subframe The frame includes one subframe other than the first subframe among the N subframes, and when the uplink data is sent by the terminal device to the network device (such as the base station), the network device is apart from the first subframe among the N subframes.
  • the uplink data transmitted on one subframe is demodulated, the possibility of error is small, so it helps to improve the reliability of the uplink data demodulation transmitted by the network device on the reference subframe to a certain extent, and further contributes to Improve the reliability of adjusting the value of the competition window.
  • the reference subframe includes a second subframe of the N subframes, and the second subframe is the next subframe adjacent to the first subframe among the N subframes.
  • the reference subframe is the second subframe of the N subframes, and the second subframe is the next subframe adjacent to the first subframe among the N subframes.
  • the terminal device adjusts the value of the contention window according to the first information corresponding to the second subframe, where the first information is the new data indication information NDI, or the first information is a hybrid automatic repeat request.
  • the HARQ-ACK information is confirmed, and the value of the contention window is used to indicate the maximum backoff duration when the terminal device accesses the unlicensed spectrum.
  • the reference subframe is the first subframe and the second subframe of the N subframes, wherein the second subframe is the next one adjacent to the first subframe in the N subframes Subframe.
  • the terminal device adjusts the value of the contention window according to the first information corresponding to the first subframe and the first information corresponding to the second subframe, where the first information is NDI, or first
  • the information is HARQ-ACK information
  • the value of the contention window is used to indicate the maximum backoff duration when the terminal device accesses the unlicensed spectrum.
  • a specific implementation manner of adjusting the value of the contention window according to the first information corresponding to the first subframe and the first information corresponding to the second subframe is:
  • the terminal device resets the value of the contention window when at least one of the NDI corresponding to the first subframe and the NDI corresponding to the second subframe is inverted; and/or, the NDI corresponding to the first subframe is not inverted, and When the NDI corresponding to the second subframe is not inverted, the value of the contention window is increased.
  • Another specific implementation manner of adjusting the value of the contention window according to the first information corresponding to the first subframe and the first information corresponding to the second subframe is:
  • the terminal device resets the value of the contention window when at least one of the HARQ-ACK information corresponding to the HARQ-ACK information of the first subframe and the HARQ-ACK information corresponding to the second subframe is the acknowledgement ACK; and/or, the terminal device
  • the first subframe corresponds to the HARQ-ACK information being a negative answer NACK or a discontinuous transmission DTX
  • the HARQ-ACK information corresponding to the second subframe is NACK or DTX
  • the value of the contention window is increased.
  • an apparatus in a second aspect, includes a processing module and a transceiver module, where the transceiver module is configured to send uplink data in consecutive N subframes, where N is a positive integer greater than 1; the processing module is configured to determine a start position for transmitting uplink data, where the start position is a start boundary of a second time slot of a first subframe of the N subframes, determining that at least one subframe of the N subframes is a reference subframe a frame, wherein the first subframe is a subframe that is ranked first in chronological order among the N subframes, and the second slot is in the first subframe and the first slot a next time slot adjacent to the first time slot, wherein the first time slot is the first time slot in the first subframe, and the reference subframe includes the N subframes.
  • the reference subframe includes a second subframe of the N subframes, and the second subframe is the next subframe adjacent to the first subframe of the N subframes.
  • the reference subframe is the second subframe of the N subframes, and the second subframe is the next subframe adjacent to the first subframe of the N subframes.
  • the processing module is further configured to adjust a value of the contention window according to the first information corresponding to the second subframe, where the first information is the new data indication information NDI, or the first information is hybrid automatic
  • the retransmission request acknowledges the HARQ-ACK information, and the value of the contention window is used to indicate the maximum backoff duration when the terminal device accesses the unlicensed spectrum.
  • the reference subframe is the first subframe and the second subframe of the N subframes, and the second subframe is the next one of the N subframes adjacent to the first subframe. Subframe.
  • the processing module is further configured to adjust a value of the contention window according to the first information corresponding to the first subframe and the first information corresponding to the second subframe, where the first information is NDI, or The first information is HARQ-ACK information.
  • the specific implementation manner of the processing module adjusting the value of the contention window according to the first information corresponding to the first subframe and the first information corresponding to the second subframe is:
  • Another specific implementation manner of the processing module for adjusting the value of the contention window according to the first information corresponding to the first subframe and the first information corresponding to the second subframe is:
  • the device is a terminal device, or the device is a device on a terminal device (such as a chip or chip system, etc.).
  • the hardware implementation corresponding to the processing module is a processor
  • the hardware implementation corresponding to the transceiver module is a transceiver, wherein the transceiver includes a receiver and a transmitter, and the function of the receiver and the function of the transmitter can be integrated into one hardware.
  • the receiver and the transceiver can also be independent hardware units, which are not limited.
  • a computer storage medium is provided by the embodiment of the present application, where the program is stored on the computer storage medium, and the program is used by the processing module to implement the first aspect and any one of the first aspects.
  • 1 is a schematic structural diagram of a subframe in an LTE FeLAA
  • FIG. 2 is a schematic structural diagram of a possible mobile communication system to which an embodiment of the present application is applied;
  • FIG. 3 is a schematic flowchart of a method for determining a reference subframe in an unlicensed spectrum according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a subframe used for transmitting uplink data according to an embodiment of the present application.
  • 5a and 5b are schematic diagrams of reference subframes in an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a subframe used for transmitting uplink data according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a subframe used for transmitting uplink data according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a subframe used for transmitting uplink data according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of an apparatus according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of an apparatus according to an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a possible mobile communication system to which the embodiment of the present application is applied.
  • the mobile communication system shown in FIG. 2 includes a radio access network device 210, a terminal device 220, and a terminal device 230.
  • FIG. 2 is only a schematic structural diagram of a mobile communication system.
  • the number of radio access network devices and the number of terminal devices in the mobile communication system are not limited, and the mobile communication system shown in FIG.
  • Other embodiments, such as a core network device, a wireless relay device, and a wireless backhaul device may also be included in the embodiments of the present application.
  • the terminal device in the mobile communication system shown in FIG. 2 can be connected to the radio access network device by wireless. It should also be noted that the terminal device in the mobile communication system shown in FIG. 2 may be fixed or mobile.
  • the radio access network device is used to connect the terminal device to the mobile communication system.
  • the radio access network device may be a base station (node B) or an evolved base station (evolved node B). , eNB), a base station in 5G, a base station in a future mobile communication system, or an access node in a wireless fidelity (WiFi) system, etc.
  • the specific technology and specific device form adopted by the radio access network device are not used. limited.
  • the terminal device in the mobile communication system shown in FIG. 2 may also be referred to as a terminal, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), or the like.
  • the terminal device may be a mobile phone, a tablet, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, and industrial control.
  • the wireless terminal in the wireless terminal, the wireless terminal in the smart city, the wireless terminal in the smart home, and the like are not limited.
  • radio access network device and the terminal device in the mobile communication system shown in FIG. 2 may be deployed on land, including indoors or outdoors, handheld or on-board; or may be deployed on the water; or may be deployed in the air, Balloons and satellites are not limited, and the application scenarios of the radio access network devices and terminal devices are not limited.
  • the terminal device in the embodiment of the present application may be the terminal device in the mobile communication system shown in FIG. 2, and the uplink data in the embodiment of the present application may be sent by the terminal device to the radio access network device shown in FIG. .
  • the uplink data is data transmitted by the terminal device to the radio access network device, or data transmitted by the terminal device in the uplink.
  • Subframes The structure of the subframe of this embodiment is as shown in FIG. 2, and includes 14 symbols, wherein the first 7 symbols are the first time slot, the last seven symbols are the second time slot, and the second time slot and the second time slot are One slot is adjacent, and the second slot is the next slot of the first slot, and the first slot is the slot in the subframe that is ranked first in chronological order.
  • the subframes in the embodiment of the present application may also be referred to as a time unit, a radio frame, a time slot, a symbol, and the like, which are not limited thereto.
  • the N subframes in the embodiment of the present application are consecutive, and the N subframes are consecutive in time, and there is no gap between them.
  • the N subframes involved in the embodiment of the present application are discontinuous.
  • the N subframes are discontinuous in time, and there is a gap between at least two adjacent subframes.
  • the value of N is 3, and the first subframe and the second subframe are Adjacent sub-frames, the second sub-frame and the third sub-frame are adjacent sub-frames.
  • the value of the competition window is used to indicate the maximum backoff duration when the terminal device accesses the unlicensed spectrum. For example, if the value of the contention window is N, the terminal device selects a value from ⁇ 0, N ⁇ to perform backoff. , wherein N has the largest backoff duration when the terminal device indicated in ⁇ 0, N ⁇ accesses the unlicensed spectrum.
  • the embodiment of the present application provides a reference in the unlicensed spectrum. Subframe method.
  • a method for determining a reference subframe in an unlicensed spectrum in the embodiment of the present application includes the following steps.
  • Step 301 The terminal device determines a starting position for transmitting uplink data, where the starting position is a starting boundary of a second time slot of a first subframe of consecutive N subframes used for transmitting uplink data, where One subframe is a subframe that is ranked first in chronological order among N subframes, and the second slot is a next slot adjacent to the first slot in the first subframe, the first time The slot is the first slot in the first subframe in chronological order, and N is a positive integer greater than one.
  • the subframe for transmitting the uplink data includes n0, n1, and n2.
  • n0, n1, and n2 are consecutive 3 subframes, and n0, n1, and n2 are in accordance with Time-ordered
  • n0 is the first subframe
  • n1 is the second subframe
  • n2 is the third subframe
  • slot 1 is the first slot of subframe n0
  • slot 2 is the second of subframe n0
  • the time slot, position 1 is the start boundary of time slot 2, and position 1 is the end boundary of time slot 1.
  • Step 302 The terminal device determines that at least one subframe of the N subframes is a reference subframe, where the reference subframe includes one subframe of the N subframes except the first subframe.
  • the reference subframe includes one of n1 and n2, for example, the reference subframe may include n1, or the reference subframe includes n2.
  • the reference subframe may be n0 and n1, or the reference subframe is n1, or the reference subframe is n1 and n2, or the reference subframes are n0, n1, and n2.
  • the reference subframe includes any one of n1 and n2, because n1 or n2 are all complete subframes, that is, all symbols can be used.
  • the radio access network device After transmitting uplink data (for example, not punctured, etc.), the radio access network device demodulates the uplink data sent by the terminal device on n1 or n2, and the possibility of error is small, so that the radio access network
  • the corresponding indication information for example, NDI information
  • feedback information such as hybrid automatic repeat request acknowledgement (HARQ-ACK) information
  • HARQ-ACK hybrid automatic repeat request acknowledgement
  • the indication information or the feedback information includes the indication information or the feedback information corresponding to n1 or n2, so to a certain extent, it helps to reduce the probability of error in adjusting the CW according to the indication information or the feedback information corresponding to the reference subframe. It helps to increase the probability of using the resources in the unlicensed spectrum to send uplink data successfully.
  • the reference subframe may be the second subframe of the N subframes, or the reference subframe may also be the first subframe and the second subframe of the N subframes, where the second subframe is The next subframe adjacent to the first subframe among the N subframes.
  • the subframe for transmitting the uplink data includes n0, n1, n2, n3, n4, and n5, and n0, n1, n2, n3, n4, and n5 are consecutive 6 subframes, And arranged in chronological order, where n0 is the first subframe, and the first time slot of n0 is punctured, n1 is the second subframe, n2 is the third subframe, n3 is the fourth subframe, and n4 is The fifth subframe, n5 is the sixth subframe, and the reference subframe may be n1 as shown in FIG. 5a, or may be n0 and n1 as shown in FIG. 5b.
  • an optional way of adjusting the value of CW is:
  • the terminal device adjusts the value of the contention window according to the first information corresponding to the second subframe, where the first information is NDI, or the first information is HARQ-ACK information.
  • an optional manner of specifically adjusting the value of the CW is: the terminal device adjusts the value of the CW according to the NDI corresponding to the second subframe. For example, when the NDI corresponding to the second subframe is reversed, the terminal device may reset the value of the CW or the value of the CW. The terminal device may increase the value of the CW when the NDI corresponding to the second subframe is not inverted. , you can also keep the value of CW unchanged.
  • the specific implementation manner of resetting the value of the CW may be: resetting the value of the CW to the initial value CWmin, or resetting the value of the CW to a preset value, where the preset value is smaller than the value of the CW before the adjustment. Wait.
  • the specific implementation manner of reducing the value of the CW in the embodiment of the present application may be: reducing the value of the CW according to the first step length, wherein the value of the first step may be preset, or may be determined based on a preset rule.
  • the radio access network device notification or the like may be limited thereto; or, the value of the pre-adjusted CW may be reduced to a value of the preset CW value set smaller than the pre-adjustment CW value or the like.
  • the specific implementation manner of increasing the value of the CW in the embodiment of the present application may be: increasing the value of the CW according to the second step, wherein the value of the second step may be preset, or may be determined based on a preset rule, and The radio access network device notification or the like may not be limited; or, the pre-adjustment CW value is increased to a value of a preset CW value set that is greater than the value of the pre-adjustment CW.
  • the specific implementation manner of resetting the value of the CW, the specific implementation manner of reducing the value of the CW, and the specific implementation manner of increasing the value of the CW are not limited in the embodiment of the present application.
  • the NDI corresponding to the second subframe is reversed, that is, the uplink data sent by the terminal device in the second subframe is newly transmitted data; the NDI corresponding to the second subframe is not reversed, that is, the terminal device sends the second subframe.
  • the uplink data is retransmitted data.
  • the terminal device adjusts the value of the CW according to the HARQ-ACK information corresponding to the second subframe. For example, when the HARQ-ACK information corresponding to the second subframe is an ACK, the terminal device may reset the value of the CW or the value of the CW.
  • the HARQ-ACK information corresponding to the second subframe in the terminal device is a negative answer. (non-acknowledgement, NACK) or discontinuous transmission (DTX), you can increase the value of CW, or keep the value of CW unchanged.
  • the specific implementation manner of resetting the value of the CW is similar to the specific implementation manner of resetting the value of the CW when the reference subframe is the second subframe as shown in FIG. 5a and the first information is NDI.
  • the specific implementation manner of the value of the CW is similar to the specific implementation manner of reducing the value of the CW when the reference subframe is the second subframe as shown in FIG. 5a and the first information is the NDI, and the specific implementation manner of increasing the value of the CW is implemented.
  • the specific implementation manner of increasing the value of CW when the reference subframe is the second subframe as shown in FIG. 5a and the first information is NDI is similar, and details are not described herein again.
  • the HARQ-ACK information involved in the embodiment of the present application includes three cases: ACK, NACK, and DTX, where the terminal device sends uplink data to the radio access network device as an example, if the radio access network device If the uplink data of the terminal device is successfully received, the HARQ-ACK information fed back by the radio access network device to the terminal device is an ACK; if the radio access network device does not receive the uplink data of the terminal device or fails to receive the uplink data sent by the terminal device, The HARQ-ACK information fed back by the radio access network device to the terminal device is NACK or DTX.
  • the above explanation can be referred to when the HARQ-ACK information involved in the embodiment of the present application is ACK, NACK or DTX.
  • an optional way of adjusting the value of CW is:
  • the terminal device adjusts the value of the contention window according to the first information corresponding to the first subframe and the first information corresponding to the second subframe.
  • the first information is the NDI, or the first information is the HARQ-ACK information.
  • an optional manner of specifically adjusting the value of the CW is: when the terminal device inverts at least one of the NDI corresponding to the first subframe and the NDI corresponding to the second subframe, The value of the contention window is also reset, and the value of the contention window can be reduced.
  • the terminal device can increase the value of the contention window when the NDI corresponding to the first subframe is not inverted and the NDI corresponding to the second subframe is not inverted. It is also possible to keep the value of the contention window unchanged.
  • the terminal device can be reset when the NDI corresponding to the first subframe is reversed and the NDI corresponding to the second subframe is reversed.
  • the value of the contention window may also reduce the value of the contention window; the terminal device may increase the value of the contention window when at least one of the NDI corresponding to the first subframe and the NDI corresponding to the second subframe is not inverted. It is also possible to keep the value of the contention window unchanged.
  • the NDI inversion corresponding to the first subframe involved in the embodiment of the present application that is, the uplink data sent by the terminal device in the first subframe is newly transmitted data; the NDI corresponding to the first subframe is not Flipping, that is, the uplink data sent by the terminal device in the first subframe is retransmitted data.
  • the NDI of the second subframe is reversed, that is, the uplink data sent by the terminal device in the second subframe is newly transmitted data; the NDI corresponding to the second subframe is not inverted, that is, the uplink data sent by the terminal device in the second subframe is heavy. Pass data.
  • the terminal device corresponds to the HARQ-ACK information in the first subframe and the HARQ-ACK information corresponding to the second subframe.
  • the at least one HARQ-ACK information is ACK
  • the value of the contention window may be reset, and the value of the contention window may be decreased
  • the terminal device corresponding to the HARQ-ACK information in the first subframe is NACK or DTX
  • the second subframe When the corresponding HARQ-ACK information is NACK or DTX, the value of the contention window may be increased, or the value of the contention window may be kept unchanged.
  • the terminal device corresponding to the HARQ-ACK information in the first subframe is an acknowledgement ACK
  • the second subframe corresponds to
  • the HARQ-ACK information may be used to confirm the answer ACK, may reset the value of the contention window, and may also reduce the value of the contention window
  • the terminal device corresponds to the HARQ-ACK information in the first subframe and the HARQ- corresponding to the second subframe.
  • the HARQ-ACK information in the ACK information is NACK or DTX
  • the value of the contention window may be increased, or the value of the contention window may be kept unchanged.
  • HARQ-ACK information Increase CW NACK or DTX ACK Increase CW ACK NACK or DTX Reset CW ACK ACK Increase CW NACK or DTX NACK or DTX
  • FIG. 5a shows a second subframe, and the specific implementation of resetting the value of CW when the first information is NDI is similar.
  • the specific implementation manner of reducing the value of CW and the reference subframe are as shown in FIG. 5a.
  • the specific implementation manner of reducing the value of CW when the first information is NDI is similar, and the specific implementation manner of increasing the value of CW and the reference subframe are as shown in FIG. 5a as the second subframe, and the first information
  • the specific implementation manner of increasing the value of CW in the case of NDI is similar, and details are not described herein again.
  • the terminal device when the terminal device determines that the starting position for transmitting the uplink data is the start boundary of the first time slot of the first subframe of the consecutive N subframes for transmitting the uplink data, the terminal The device may determine the reference subframe according to the determining manner of the existing reference subframe, and may also determine the reference subframe according to the determining manner of the subframe according to the embodiment of the present application, which is not limited thereto.
  • the subframes for transmitting the uplink data include n0, n1, and n2.
  • n0, n1, and n2 are consecutive 3 subframes, and are arranged in chronological order, wherein N0 is the first subframe, n1 is the second subframe, and n2 is the third subframe.
  • the slot 1 is the first slot of the subframe n0
  • the slot 2 is the second slot of the subframe n0.
  • the location 1 is the start boundary of the slot 1 and is determined based on the determining manner of the existing reference subframe.
  • the reference subframe is n0.
  • the reference subframe may be At least one of n0, n1, and n2, for example, the reference subframe may be n1, or may be n1 and n2, or the reference subframes are n0, n1, and n3, etc., which will not be described one by one.
  • the terminal device determines that the starting position for transmitting the uplink data is the starting boundary of the first slot of the first subframe of the consecutive N subframes for transmitting the uplink data, the terminal device adjusts the CW.
  • the manner of the value refer to the manner of adjusting the value of the CW in the embodiment of the present application, and the corresponding adjustment may be performed based on the existing method of adjusting the value of the CW, which is not limited.
  • the subframe used for transmitting the uplink data includes only one subframe, and in this case, the starting position for transmitting the uplink data is the second slot of the subframe.
  • the starting boundary, then the reference subframe is the subframe. For example, as shown in FIG.
  • the subframe n0 is a subframe for transmitting uplink data
  • the subframe n0 includes a slot 1 and a slot 2, wherein the slot 1 is the first slot of the subframe n0, and the slot 2
  • the position 1 is the start boundary of the time slot 2
  • the subframe for transmitting the uplink data has only the subframe n0
  • the start position for transmitting the subframe n0 is the position 1
  • the reference subframe is the subframe n0
  • the value of the CW may be adjusted based on the value of the NDI corresponding to the subframe n0 or the HARQ-ACK information corresponding to the subframe n0.
  • the reference subframe For the specific adjustment manner, refer to the reference subframe. The manner of adjusting the value of CW when shown in Fig. 5a will not be described here.
  • the reference subframe is usually the last subframe of the N subframes, but the end position for transmitting the uplink data is the most subframe of the N subframes.
  • the second time slot on the last subframe does not transmit data, so the value of the NDI corresponding to the reference subframe or the reliability of the HARQ-ACK information is poor, in order to be used for
  • the N subframes in which the uplink data is transmitted are discontinuous, and the end position for transmitting the uplink data is the start boundary of the second slot of the most one of the N subframes, the value of the NDI corresponding to the reference subframe is increased or
  • the reliability of the HARQ-ACK information optionally, the second-to-last subframe of the N subframes is used as the reference subframe, or the first-to-last subframe and the second-to-last subframe of the N subframes are used as reference sub-frames.
  • the subframes for transmitting uplink data include n0, n1, n2, n3, n4, and n5, and are arranged in chronological order.
  • n1 and n2 are discontinuous.
  • the reference subframe may be N4 as shown in FIG. 8, or may be n4 and n5 as shown in FIG.
  • the reference subframe may be an example of n4 as shown in FIG. 8.
  • the terminal device adjusts the value of the CW according to the first information corresponding to n4, where the first information is NDI or HARQ-ACK information, the specific adjustment of the CW is performed.
  • the manner of the value refer to the manner of adjusting the value of the CW when the reference subframe is as shown in FIG. 5a, and details are not described herein again.
  • the terminal device adjusts the value of CW according to the first information corresponding to n4 and the first information corresponding to n5, where the first information is the value of NDI or HARQ.
  • the manner of adjusting the value of the CW the manner of adjusting the value of the CW when the reference subframe is as shown in FIG. 5b is not described here.
  • the terminal device adjusts the value of CW1 according to the first information corresponding to the reference subframe in which the uplink data is transmitted in the ith time, and obtains the value of CW2, where the value of CW1 is
  • the CW2 is set to the (i+N)th time when the uplink data needs to be transmitted, and the backoff mechanism determines whether or not
  • the value of the CW that can be used by the resources in the unlicensed spectrum where i is a positive integer, the value of N can be 1, or a positive integer greater than 1, and the value of N can also be multiple values, for example, 1, 2 Equal positive integer.
  • the value of i is 2, and the value of N is 1.
  • the subframe is based on the second transmission of the uplink data, n0, n1, and n2, and the reference subframe is n1, the first information corresponding to n1 is used. NDI, HQRQ-ACK information, etc., to adjust the value of CW1 to obtain the value of CW2.
  • the value of CW1 is used by the terminal device to determine whether the resource in the unlicensed spectrum can be used in the backoff mechanism when the uplink data needs to be transmitted for the second time.
  • the value of the used CW when the terminal device needs to transmit the uplink data for the third time, can use the value of CW2 to determine whether the uplink data can be transmitted using the resources in the unlicensed spectrum in the backoff mechanism.
  • the value of N is 1 and 2
  • the value of CW2 can be used to determine whether the resources in the unlicensed spectrum can be used in the backoff mechanism. Send upstream data.
  • the method provided by the embodiment of the present application is introduced in the execution flow of the terminal device.
  • the terminal device may include a hardware structure and/or a software module, and implement the foregoing functions in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • One of the above functions is performed in the form of a hardware structure, a software module, or a hardware structure plus a software module, depending on the specific application and design constraints of the technical solution.
  • FIG. 9 shows an apparatus 900 provided by the present application.
  • the apparatus 900 may be a terminal device, or may be a device capable of supporting a terminal device to implement the functions of the terminal device in the method in FIG.
  • device 900 can also be a device (such as a chip or chip system) within a terminal device.
  • the chip system may be composed of a chip, and may also include a chip and other discrete devices.
  • the apparatus 900 shown in FIG. 9 includes a processing module 901 and a transceiver module 902, wherein the transceiver module 902 is configured to send uplink data in consecutive N subframes, where N is a positive integer greater than one; and the processing module 901 is configured to determine to send a start position of the uplink data, where the start position is a start boundary of the second time slot of the first subframe of the N subframes, determining that at least one of the N subframes is a reference subframe
  • the first subframe is a subframe that is ranked first in chronological order among the N subframes, and the second slot is associated with the first slot in the first subframe.
  • the next time slot of the neighbor, the first time slot is the first time slot in the first subframe in chronological order;
  • the reference subframe includes the other one of the N subframes except the first subframe One subframe.
  • the first subframe is a second subframe of the N subframes
  • the second subframe is a next subframe adjacent to the first subframe of the N subframes.
  • the reference subframe is a second subframe of the N subframes, and the second subframe is a next subframe adjacent to the first subframe of the N subframes.
  • the processing module 901 is further configured to: adjust the value of the contention window according to the first information corresponding to the second subframe, where the first information is NDI, or the first information is HARQ-ACK information, and the value of the contention window is It is used to indicate the maximum backoff duration when the terminal device accesses the unlicensed spectrum.
  • the reference subframe is a first subframe and a second subframe of the N subframes
  • the second subframe is a next subframe adjacent to the first subframe of the N subframes.
  • the processing module 901 is further configured to: adjust the value of the contention window according to the first information corresponding to the first subframe and the first information corresponding to the second subframe; where the first information is NDI, or first The information is HARQ-ACK information, and the value of the contention window is used to indicate the maximum backoff duration when the terminal device accesses the unlicensed spectrum.
  • the specific implementation manner that the processing module 901 adjusts the value of the contention window according to the first information corresponding to the first subframe and the first information corresponding to the second subframe is:
  • processing module 901 configured to adjust a value of the contention window according to the first information corresponding to the first subframe and the first information corresponding to the second subframe is:
  • an apparatus 1000 provided by the present application may be a terminal device, or may be a device capable of supporting a terminal device to implement the functions of the terminal device in the method related to FIG. 3.
  • device 1000 can be a device (such as a chip or chip system) within a terminal device.
  • the chip system may be composed of a chip, and may also include a chip and other discrete devices.
  • the device 1000 includes at least one processor 1010, which is used to implement the function of the terminal device in the method for determining the reference subframe in the unlicensed spectrum provided by the embodiment of the present application.
  • Apparatus 1000 can also include at least one memory 1020 for storing program instructions and/or data.
  • Memory 1020 is coupled to processor 1010.
  • Processor 1010 may operate in conjunction with memory 1020.
  • Processor 1010 may execute program instructions stored in memory 1020. At least one of the at least one memory 1020 can be included in the processor 1010.
  • the device 1000 can also include a communication interface 1030 that can interact with other devices via the communication interface 1030.
  • Communication interface 1030 can be a circuit, bus, transceiver, or any other device that can be used to interact with information.
  • the other device may be another terminal device or a network device.
  • the processor 1010 can transmit and receive data by using the communication interface 1030.
  • the communication interface 1030 is configured to send uplink data
  • the processor 1010 is configured to determine a starting position for transmitting the uplink data as a starting boundary of the first time slot and a reference. Subframes, etc.
  • connection medium between the communication interface 1030, the processor 1010, and the memory 1020 is not limited in the embodiment of the present application.
  • the embodiment of the present application is connected by a bus between the memory 1020, the processor 1010, and the communication interface 1030 in FIG. 10, and the bus is indicated by a thick line in FIG. 10, and the connection manner between other components is only schematically illustrated. Not limited to limits.
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in FIG. 10, but it does not mean that there is only one bus or one type of bus.
  • FIG. 9 and FIG. 10 may be used to implement the steps performed by the terminal device in the method for determining a reference subframe in the unlicensed spectrum shown in FIG. 3 in the embodiment of the present application. , will not repeat them here.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, a network device, a terminal device, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server or data center via wired (eg coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, a Solid State Disk (SSD)). )Wait.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a digital video disc (DVD)
  • DVD digital video disc
  • SSD Solid State Disk
  • embodiments of the present application can be provided as a method, apparatus (device), computer readable storage medium, or computer program product.
  • the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware aspects, which are collectively referred to herein as "module” or "system.”
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

一种非授权频谱中确定参考子帧的方法及装置,涉及通信技术领域,其中该方法包括:终端设备在确定用于发送上行数据的起始位置,所述起始位置为用于发送上行数据的连续N个子帧中第一个子帧的第二个时隙的起始边界时,确定连续N个子帧中的至少一个子帧为参考子帧;其中,第一个子帧为N个子帧中按照时间顺序排在最开始的子帧,第二个时隙为第一个子帧中与第一个时隙相邻的下一个时隙,第一个时隙为第一个子帧中按照时间顺序排在最开始的时隙,N为大于1的正整数,参考子帧包括N个子帧中除第一个子帧以外的一个子帧。通过上述技术方案在一定程度上有助于提高网络设备对参考子帧上发送的上行数据解调的可靠性。

Description

一种非授权频谱中确定参考子帧的方法及装置
本申请要求2017年11月25日提交中国专利局、申请号为201711197575.7的中国专利申请,以及2018年2月14日提交中国专利局、申请号为201810151870.7的中国专利申请的优先权,其全部内容通过引用结合在本申请文件中。仅仅是为了简洁表述,其全部内容不在本申请文件中再原文重复一遍。
技术领域
本申请涉及通信技术领域,特别涉及一种非授权频谱中确定参考子帧的方法及装置。
背景技术
无线通信系统中使用的频谱分为授权频谱(licensed spectrum)和非授权频谱(unlicensed spectrum)。其中,非授权频谱为免费的频谱资源、任何用户均可以使用。
目前,当终端设备使用非授权频谱中的资源来发送上行数据时,是通过退避机制来判断是否能够使用非授权频谱中的资源来发送上行数据的,其中,退避窗口(contention windows,CW)为退避机制中的一个关键参数,它的值决定了终端设备使用非授权频谱中的资源来发送上行数据需要的退避时长,例如CW的值设置的过大可能会导致终端设备需要的退避时长过长,从而导致上行数据发送的延迟较大,甚至上行数据发送的失败。
现有技术中,终端设备是基于参考子帧对应的新数据指示信息(new data indicator,NDI),调整CW的值的,其中参考子帧按照下述规则确定的,若终端设备在子帧n0、n1、n2、…、nk上发送上行数据,在子帧n0、n1、n2、…、nk为连续的情况下,则参考子帧为第一个子帧n0,在子帧n0、n1、n2、…、nk为不连续的情况下,则参考子帧为最后一个子帧nk。
长期演进(long term evolution,LTE)进一步增强的授权辅助接入(further enhancement licensed-assisted access,FeLAA)中的子帧结构如图1所示,包括14个符号,其中前7个符号为第一个时隙,后7个符号为第二个时隙,终端设备用于发送上行数据的起始位置除了符号0以外,还增加了符号7,当终端设备用于发送上行数据的起始位置为符号7时,则子帧n0的前7个符号被打孔(puncture),不能发送上行数据。因此,基于现有技术中参考子帧的确定方式,当终端设备用于发送上行数据的起始位置为子帧n0的符号7时,在子帧n0、n1、n2、…、nk为连续的情况下,参考子帧为子帧n0,则参考子帧上可能只有第二个时隙能够用于发送上行数据,在这种情况下,基站对参考子帧上发送的上行数据的解调性能较差,大大增加了参考子帧对应的NDI的值的不可靠性,容易增加CW的调整时出错的概率,例如将CW的值调整的过大,从而导致上行数据发送的延迟较大,甚至导致上行数据发送的失败。
发明内容
本申请实施例提供了一种非授权频谱中确定参考子帧的方法及装置,有助于在一定程度上提高基站对参考子帧上发送的上行数据解调的可靠性。
第一方面,本申请实施例提供了一种非授权频谱中确定参考子帧的方法,包括:
终端设备在确定用于发送上行数据的起始位置,所述起始位置为用于发送上行数据的连续N个子帧中第一个子帧的第二个时隙的起始边界,第一个子帧为N个子帧中按照时间顺序排在最开始的子帧,第二个时隙为第一个子帧中与第一个时隙相邻的下一个时隙,第一个时隙为第一个子帧中按照时间顺序排在最开始的时隙,N为大于1的正整数,然后终端设备确定N个子帧中的至少一个子帧为参考子帧;参考子帧包括N个子帧中除第一个子帧以外的一个子帧。
本申请实施例中由于在用于发送上行数据的起始位置为用于发送上行数据的连续N个子帧中的第一个子帧的第二个时隙的起始边界的情况下,参考子帧包括N个子帧中除第一个子帧以外的一个子帧,在上行数据为终端设备发送给网络设备(如基站)时,网络设备在对N个子帧中除第一个子帧以外的一个子帧上发送的上行数据的解调时,出错的可能性较小,因此在一定程度上有助于提高网络设备对参考子帧上发送的上行数据解调的可靠性,进一步有助于提高调整竞争窗口的值的可靠性。
在一种可能的设计中,参考子帧包括N个子帧中的第二个子帧,第二个子帧为在N个子帧中与第一个子帧相邻的下一个子帧。通过上述技术方案,有助于提高调整竞争窗口的值的可靠性,同时简化实现方式。
在一种可能的设计中,参考子帧为N个子帧中的第二个子帧,第二个子帧为在N个子帧中与第一个子帧相邻的下一个子帧。通过上述技术方案有助于提高调整竞争窗口的值的可靠性,同时进一步简化实现方式。
在一种可能的设计中,终端设备根据第二个子帧对应的第一信息,调整竞争窗口的值;其中,第一信息为新数据指示信息NDI,或者,第一信息为混合自动重传请求确认HARQ-ACK信息,竞争窗口的值用于指示终端设备接入非授权频谱时的最大退避时长。通过上述技术方案,有助于提高调整竞争窗口的值的可靠性,进而提高上行数据发送的成功的可能性。
在一种可能的设计中,参考子帧为N个子帧中的第一个子帧和第二个子帧,其中第二个子帧为在N个子帧中与第一个子帧相邻的下一个子帧。
在一种可能的设计中,终端设备根据第一个子帧对应的第一信息和第二个子帧对应的第一信息,调整竞争窗口的值;其中,第一信息为NDI,或者,第一信息为HARQ-ACK信息,竞争窗口的值用于指示终端设备接入非授权频谱时的最大退避时长。通过上述技术方案,有助于提高调整竞争窗口的值的可靠性,进而提高上行数据发送的成功的可能性。
在一种可能的设计中,一种根据第一个子帧对应的第一信息和第二个子帧对应的第一信息调整竞争窗口的值的具体实现方式为:
终端设备在第一个子帧对应的NDI和第二个子帧对应的NDI中至少一个NDI翻转时,重置竞争窗口的值;和/或,在第一个子帧对应的NDI未翻转、且第二个子帧对应的NDI未翻转时,增大竞争窗口的值。
在一种可能的设计中,另一种根据第一个子帧对应的第一信息和第二个子帧对应的第一信息调整竞争窗口的值的具体实现方式为:
终端设备在第一个子帧对应HARQ-ACK信息和第二个子帧对应的HARQ-ACK信息中至少一个HARQ-ACK信息为确认回答ACK时,重置竞争窗口的值;和/或,终端设备在第一个子帧对应HARQ-ACK信息为否认回答NACK或非连续传输DTX、且第二个子帧对应的HARQ-ACK信息为NACK或DTX时,增大竞争窗口的值。
第二方面,本申请实施例提供的一种装置,包括处理模块和收发模块,其中,收发模块用于在连续N个子帧上发送上行数据,N为大于1的正整数;处理模块用于确定用于发送上行数据的起始位置,所述起始位置为N个子帧中第一个子帧的第二个时隙的起始边界时,确定N个子帧中的至少一个子帧为参考子帧,其中,第一个子帧为所述N个子帧中按照时间顺序排在最开始的子帧,所述第二个时隙为在所述第一个子帧中与第一个时隙相邻的下一个时隙,所述第一个时隙为所述第一个子帧中按照时间顺序排在最开始的时隙,所述参考子帧包括所述N个子帧中除所述第一个子帧以外的一个子帧。
在一种可能的设计中,参考子帧包括N个子帧中的第二个子帧,第二个子帧为所述N个子帧中与第一个子帧相邻的下一个子帧。
在一种可能的设计中,参考子帧为N个子帧中的第二个子帧,第二个子帧为所述N个子帧中与第一个子帧相邻的下一个子帧。
在一种可能的设计中,处理模块还用于根据第二个子帧对应的第一信息,调整竞争窗口的值;其中,第一信息为新数据指示信息NDI,或者,第一信息为混合自动重传请求确认HARQ-ACK信息,竞争窗口的值用于指示终端设备接入非授权频谱时的最大退避时长。
在一种可能的设计中,参考子帧为N个子帧中的第一个子帧和第二个子帧,第二个子帧为所述N个子帧中与第一个子帧相邻的下一个子帧。
在一种可能的设计中,处理模块还用于根据第一个子帧对应的第一信息和第二个子帧对应的第一信息,调整竞争窗口的值;其中,第一信息为NDI,或者,第一信息为HARQ-ACK信息。
在一种可能的设计中,处理模块根据第一个子帧对应的第一信息和第二个子帧对应的第一信息调整竞争窗口的值的一种具体实现方式为:
在第一个子帧对应的NDI和第二个子帧对应的NDI中至少一个NDI翻转时,重置竞争窗口的值;和/或,在第一个子帧对应的NDI未翻转、且第二个子帧对应的NDI未翻转时,增大竞争窗口的值。
在一种可能的设计中,处理模块用于根据第一个子帧对应的第一信息和第二个子帧对应的第一信息调整竞争窗口的值的另一种具体实现方式为:
在第一个子帧对应HARQ-ACK信息和第二个子帧对应的HARQ-ACK信息中至少一个HARQ-ACK信息为确认回答ACK时,重置竞争窗口的值;和/或,在第一个子帧对应HARQ-ACK信息为否认回答NACK或非连续传输DTX、且第二个子帧对应的HARQ-ACK信息为NACK或DTX时,增大竞争窗口的值。
在一种可能的设计中,所述装置为终端设备,或者,所述装置为终端设备上的装置(如芯片或者芯片系统等)。
需要说明的是,处理模块对应的硬件实现方式为处理器,收发模块对应的硬件实现方式为收发器,其中收发器包括接收器和发送器,接收器的功能和发送器功能可以集成在一个硬件模块中,接收器和收发器也可以分别为独立的硬件单元,对此不作限定。
第三方面,本申请实施例提供的一种计算机存储介质,所述计算机存储介质上存储有程序,所述程序被处理模块执行时,用于实现第一方面以及第一方面任意一种可能的设计的非授权频谱中确定参考子帧的方法。
另外,第二方面至第三方面中任一种可能设计方式所带来的技术效果可参见第一方面中不同设计方式所带来的技术效果,此处不再赘述。
附图说明
图1为LTE FeLAA中子帧的结构示意图;
图2为本申请实施例适用的一种可能的移动通信系统的架构示意图;
图3为本申请实施例非授权频谱中确定参考子帧的方法的流程示意图;
图4为本申请实施例用于发送上行数据的子帧的示意图;
图5a和图5b分别为本申请实施例参考子帧的示意图;
图6为本申请实施例用于发送上行数据的子帧的示意图;
图7为本申请实施例用于发送上行数据的子帧的示意图;
图8为本申请实施例用于发送上行数据的子帧的示意图;
图9为本申请实施例装置的结构示意图;
图10为本申请实施例装置的结构示意图。
具体实施方式
图2为本申请实施例适用的一种可能的移动通信系统的架构示意图。如图2所示的移动通信系统包括无线接入网设备210、终端设备220和终端设备230。应理解,图2仅为移动通信系统的一个架构示意图,本申请实施例中对移动通信系统中无线接入网设备的数量、终端设备的数量不作限定,而且图2所示的移动通信系统中还可以包括其它设备,如核心网设备、无线中继设备和无线回传设备等,对此本申请实施例也不作限定。以及,图2所示的移动通信系统中无线接入网设备功能在具体实现时可以为一个独立的物理设备,也可以为用于实现无线接入网设备功能的多个独立的物理设备,对此本申请实施例不作限定。此外,图2所示的移动通信系统中终端设备可以通过无线方式与无线接入网设备连接。还需要说明的是,图2所示的移动通信系统中的终端设备可以是固定位置的,也可以是可移动的。
图2所示的移动通信系统中无线接入网设备用于将终端设备接入到移动通信系统中,具体的,无线接入网设备可以是基站(node B)、演进型基站(evolved node B,eNB)、5G中的基站、未来移动通信系统中的基站或无线保真(wireless fidelity,WiFi)系统中的接入节点等,对无线接入网设备所采用的具体技术和具体设备形态不作限定。
图2所示的移动通信系统中终端设备也可以称为终端(terminal)、用户设备(user equipment,UE)、移动台(mobile station,MS)、移动终端(mobile terminal,MT)等。具体的,终端设备可以是手机(mobile phone)、平板电脑(pad)、带无线收发功能的电脑、虚拟现实(virtual reality,VR)终端设备、增强现实(augmented reality,AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运 输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等,对此不作限定。
应理解,图2所示的移动通信系统中无线接入网设备和终端设备可以部署在陆地上,包括室内或室外、手持或车载;也可以部署在水面上;还可以部署在空中的飞机、气球和人造卫星上等,对无线接入网设备和终端设备的应用场景不做限定。
本申请实施例中所涉及的终端设备可以为图2所示的移动通信系统中的终端设备,本申请实施例中的上行数据可以为终端设备发送给图2所示的无线接入网设备的。
下面结合图2所示的移动通信系统对本申请实施例进行具体介绍。
首先针对本申请实施例涉及到的部分名词进行解释,以便本领域技术人员理解本申请实施例的技术方案。
1、上行数据。上行数据为终端设备向无线接入网设备发送的数据,或者为终端设备在上行链路中发送的数据。
2、子帧。本申请实施例的子帧的结构如图2所示,包括14个符号,其中前7个符号为第一个时隙,后七个符号为第二个时隙,第二个时隙与第一个时隙相邻,且第二个时隙为第一个时隙的下一个时隙,第一个时隙为子帧中按照时间顺序排在最开始的时隙。需要说明的是,本申请实施例中的子帧还可以称之为时间单元、无线帧、时隙、符号等,对此不作限定。
3、本申请实施例中涉及到的N个子帧连续,指的是N个子帧在时间上连续,相互之间没有间隔(gap);本申请实施例中涉及到的N个子帧不连续,指的是N个子帧在时间上不连续,存在至少两个相邻的子帧之间有间隔(gap),以N的取值为3为例,则第一个子帧和第二个子帧为相邻的子帧,第二个子帧和第三个子帧为相邻的子帧。
4、竞争窗口的值。本申请实施例中竞争窗口的值用于指示终端设备接入非授权频谱时的最大退避时长,例如,竞争窗口的值为N,则终端设备从{0,N}中选择一个值,进行退避,其中N在{0,N}中所指示的终端设备接入非授权频谱时的退避时长最大。
当用于发送上行数据的子帧为n0、n1、n2、…、nN、且n0、n1、n2、…、nN为连续情况下,若用于发送上行数据的起始位置为n0的第二个时隙的起始边界时,为了提高CW调整的可靠性,进而增大使用非授权频谱中的资源来发送上行数据成功的可能性,本申请实施例提供了一种非授权频谱中确定参考子帧的方法。
如图3所示,本申请实施例非授权频谱中确定参考子帧的方法,包括以下步骤。
步骤301,终端设备确定用于发送上行数据的起始位置,所述起始位置为用于发送上行数据的连续N个子帧中第一个子帧的第二个时隙的起始边界,第一个子帧为N个子帧中按照时间顺序排在最开始的子帧,第二个时隙为第一个子帧中与第一个时隙相邻的下一个时隙,第一个时隙为第一个子帧中按照时间顺序排在最开始的时隙,N为大于1的正整数。
例如,假设N的取值为3,用于发送上行数据的子帧包括n0、n1和n2,如图4所示,n0、n1和n2为连续的3个子帧,且n0、n1和n2按照时间顺序排列,n0为第一个子帧、n1为第二个子帧、n2为第三个子帧,时隙1为子帧n0的第一个时隙,时隙2为子帧n0的第二个时隙,位置1为时隙2的起始边界,同时位置1为时隙1的结束边界。
步骤302,终端设备确定N个子帧中至少一个子帧为参考子帧,其中,参考子帧中包括N个子帧中除第一个子帧以外的一个子帧。
以图4所示的用于发送上行数据的子帧为例,参考子帧包括n1和n2中的一个子帧,例如参考子帧可以包括n1、或者参考子帧包括n2。当参考子帧包括n1时,示例的,参考子帧可以为n0和n1,或者,参考子帧为n1,或者,参考子帧为n1和n2,再或者,参考子帧为n0、n1和n2。
当用于发送上行数据的起始位置为图4所示的位置1时,参考子帧中包括n1和n2中的任意一个子帧,因为n1或n2都为完整子帧,即全部符号能够用于发送上行数据(例如没有被打孔(punctured)等),因此无线接入网设备对终端设备在n1或n2上发送的上行数据进行解调时,出错可能性较小,从而无线接入网设备发送的与之相应的指示信息(例如:NDI信息)或者反馈信息(如混合自动重传请求确认(hybrid automatic repeat request acknowledgement,HARQ-ACK)信息)的可靠性较高,而参考子帧对应的指示信息或者反馈信息中包括n1或n2对应的指示信息或者反馈信息,所以在一定程度上有助于降低根据参考子帧对应的指示信息或者反馈信息,对CW的调整时出错的概率,从而有助于增大使用非授权频谱中的资源来发送上行数据成功的可能性。
可选的,参考子帧可以为N个子帧中的第二个子帧,或者,参考子帧也可以为N个子帧中的第一个子帧和第二个子帧,其中第二个子帧为在N个子帧中与第一个子帧相邻的下一个子帧。
示例的,假设N的取值为6,用于发送上行数据的子帧包括n0、n1、n2、n3、n4和n5,n0、n1、n2、n3、n4和n5为连续的6个子帧、且按照时间顺序排列,其中n0为第一个子帧,且n0的第一个时隙被打孔、n1为第二个子帧、n2为第三个子帧,n3为第四个子帧、n4为第五个子帧、n5为第六个子帧,则参考子帧可以如图5a所示为n1,或者也可以如图5b所示为n0和n1。
当参考子帧如图5a所示为第二个子帧时,一种可选的调整CW的值的方式为:
终端设备根据第二个子帧对应的第一信息,调整竞争窗口的值;其中,第一信息为NDI,或者,第一信息为HARQ-ACK信息。
当第一信息为NDI时,一种可选的具体调整CW的值的方式为:终端设备根据第二个子帧对应的NDI,调整CW的值。例如,终端设备在第二个子帧对应的NDI翻转时,可以重置CW的值,也可以减小CW的值;终端设备在第二子帧对应的NDI未翻转时,可以增大CW的值,也可以保持CW的值不变。
本申请实施例中,重置CW的值的具体实现方式可以为:重置CW的值为初始值CWmin,或者重置CW的值为一个预设值,该预设值小于调整前CW的值等。本申请实施例中减小CW的值的具体实现方式可以为:按照第一步长减小CW的值,其中第一步长的取值可以预先设定,也可以基于预设规则确定,还可以由无线接入网设备通知等对此不作限定;或者,将调整前的CW的值减小为预设CW的取值集合中的一个小于调整前CW的值等。本申请实施例中增大CW的值的具体实现方式可以为:按照第二步长增大CW的值,其中第二步长的取值可以预先设定,也可以基于预设规则确定,还可以由无线接入网设备通知等对此不作限定;或者,将调整前CW值增大为预设的CW取值集合中大于调整前CW的值的一个值等。本申请实施例对重置CW的值的具体实现方式、减小CW的值的具体实现方式、以及增大CW的值的具体实现方式不作限定。
需要说明的是,第二个子帧对应的NDI翻转,即第二个子帧上终端设备发送的上行数据为新传数据;第二个子帧对应的NDI未翻转,即第二个子帧上终端设备发送的上行数据为重传数据。
当第一信息为HARQ-ACK信息时,一种可选的具体调整CW的值的方式为:终端设备根据第二个子帧对应的HARQ-ACK信息,调整CW的值。例如,终端设备在第二个子帧对应的HARQ-ACK信息为ACK时,可以重置CW的值,也可以减小CW的值;终端设备在第二子帧对应的HARQ-ACK信息为否定回答(non-acknowledgement,NACK)或者非连续传输(Discontinuous Transmission,DTX)时,可以增大CW的值,也可以保持CW的值不变。
需要说明的是,重置CW的值的具体实现方式与当参考子帧如图5a所示为第二个子帧、且第一信息为NDI时重置CW的值的具体实现方式类似,减小CW的值的具体实现方式与当参考子帧如图5a所示为第二个子帧、且第一信息为NDI时减小CW的值的具体实现方式类似、增大CW的值的具体实现方式与当参考子帧如图5a所示为第二个子帧、且第一信息为NDI时增大CW的值的具体实现方式类似,在此不再赘述。
此外,需要说明的是,本申请实施例中涉及的HARQ-ACK信息包括三种情况:ACK、NACK和DTX,以终端设备向无线接入网设备发送上行数据为例,若无线接入网设备成功接收到终端设备的上行数据,则无线接入网设备向终端设备反馈的HARQ-ACK信息为ACK;若无线接入网设备未接收到终端设备的上行数据或者接收终端设备发送的上行数据失败,则无线接入网设备向终端设备反馈的HARQ-ACK信息为NACK或者DTX。本申请实施例中所涉及到的HARQ-ACK信息为ACK、NACK或DTX时均可参见上述解释。
当参考子帧如图5b所示为第一个子帧和第二个子帧时,一种可选的调整CW的值的方式为:
终端设备根据第一个子帧对应的第一信息和第二个子帧对应的第一信息,调整竞争窗口的值;其中,第一信息为NDI,或者,第一信息为HARQ-ACK信息。
当第一信息为NDI时,一种可选的具体调整CW的值的方式为:终端设备在第一个子帧对应的NDI和第二个子帧对应的NDI中的至少一个NDI翻转时,可以重置竞争窗口的值,也可以减小竞争窗口的值;终端设备在第一个子帧对应的NDI未翻转、且第二个子帧对应的NDI未翻转时,可以增大竞争窗口的值,也可以保持竞争窗口的值不变。
示例的,一种可能的具体调整CW的值的方式如表1所示。
表1
Figure PCTCN2018117115-appb-000001
当第一信息为NDI时,另一种可选的具体调整CW的值的方式为:终端设备在第一个 子帧对应的NDI翻转、且第二个子帧对应的NDI翻转时,可以重置竞争窗口的值,也可以减小竞争窗口的值;终端设备在第一个子帧对应的NDI和第二个子帧对应的NDI中的至少一个NDI未翻转时,可以增大竞争窗口的值,也可以保持竞争窗口的值的不变。
示例的,一种具体的可能的调整CW的值的方式如表2所示。
表2
Figure PCTCN2018117115-appb-000002
需要说明的是,本申请实施例中涉及到的第一个子帧对应的NDI翻转,即第一个子帧上终端设备发送的上行数据为新传数据;第一个子帧对应的NDI未翻转,即第一个子帧上终端设备发送的上行数据为重传数据。第二个子帧对应的NDI翻转,即第二个子帧上终端设备发送的上行数据为新传数据;第二个子帧对应的NDI未翻转,即第二个子帧上终端设备发送的上行数据为重传数据。
当第一信息为HARQ-ACK信息时,一种可选的具体调整CW的值的方式为:终端设备在第一个子帧对应HARQ-ACK信息和第二个子帧对应的HARQ-ACK信息中至少一个HARQ-ACK信息为ACK时,可以重置竞争窗口的值,也可以减小竞争窗口的值;终端设备在第一个子帧对应HARQ-ACK信息为NACK或DTX、且第二个子帧对应的HARQ-ACK信息为NACK或DTX时,可以增大竞争窗口的值,也可以保持竞争窗口的值不变。
示例的,一种具体的可能的调整CW的值的方式如表3所示。
表3
Figure PCTCN2018117115-appb-000003
当第一信息为HARQ-ACK信息时,另一种可选的具体调整CW的值的方式为:终端设备在第一个子帧对应HARQ-ACK信息为确认回答ACK、且第二个子帧对应的HARQ-ACK信息为确认回答ACK时,可以重置竞争窗口的值,也可以减小竞争窗口的值;终端设备在第一个子帧对应HARQ-ACK信息和第二个子帧对应的HARQ-ACK信息中的至少一个HARQ-ACK信息为NACK或DTX时,可以增大竞争窗口的值,也可以保持竞争窗口的值不变。
示例的,一种具体的可能的调整CW的值的方式如表4所示。
表4
CW的值的调整方式 第一个子帧对应的 第二个子帧对应
  HARQ-ACK信息 HARQ-ACK信息
增大CW NACK或DTX ACK
增大CW ACK NACK或DTX
重置CW ACK ACK
增大CW NACK或DTX NACK或DTX
需要说明的是,本申请实施例当参考子帧如图5b所示为第一个子帧和第二个子帧时,上述涉及到的重置CW的值的具体实现方式与当参考子帧如图5a所示为第二个子帧、且第一信息为NDI时重置CW的值的具体实现方式类似,减小CW的值的具体实现方式与当参考子帧如图5a所示为第二个子帧、且第一信息为NDI时减小CW的值的具体实现方式类似、增大CW的值的具体实现方式与当参考子帧如图5a所示为第二个子帧、且第一信息为NDI时增大CW的值的具体实现方式类似,在此不再赘述。
此外,本申请实施例中当终端设备确定用于发送上行数据的起始位置为用于发送上行数据的连续N个子帧中第一个子帧的第一个时隙的起始边界时,终端设备可以基于现有的参考子帧的确定方式来确定参考子帧,也可以基于本申请实施例参考子帧的确定方式来确定参考子帧,对此不作限定。
例如,假设N的取值为3,用于发送上行数据的子帧包括n0、n1和n2,如图6所示,n0、n1和n2为连续的3个子帧、且按照时间顺序排列,其中n0为第一个子帧、n1为第二个子帧、n2为第三个子帧,时隙1为子帧n0的第一个时隙,时隙2为子帧n0的第二个时隙,位置1为时隙1的起始边界,基于现有的参考子帧的确定方式来确定时,参考子帧为n0,基于本申请实施例的方式来确定参考子帧时,参考子帧可以为n0、n1和n2中的至少一个,例如参考子帧可以为n1、也可以为n1和n2,或者参考子帧为n0、n1和n3等,在此不再一一介绍。
应理解,当终端设备确定用于发送上行数据的起始位置为用于发送上行数据的连续N个子帧中第一个子帧的第一个时隙的起始边界时,终端设备调整CW的值的方式可以参见本申请实施例调整CW的值的方式,也可以基于现有的调整CW的值的方式进行相应的调整,对此不作限定。
另外,在上行数据发送的场景中,用于发送上行数据的子帧只包括一个子帧,若在这种情况下,用于发送上行数据的起始位置为该子帧的第二个时隙的起始边界,则参考子帧为该子帧。例如如图7所示,子帧n0为用于发送上行数据的子帧,子帧n0包括时隙1和时隙2,其中时隙1为子帧n0的第一个时隙,时隙2为子帧n0的第二个时隙,位置1为时隙2的起始边界,若用于发送上行数据的子帧只有子帧n0,且用于发送子帧n0的起始位置为位置1,则参考子帧为子帧n0,具体的可基于子帧n0对应的NDI的值或者子帧n0对应的HARQ-ACK信息,调整CW的值,其具体调整方式可参见当参考子帧如图5a所示时,调整CW的值的方式,在此不再赘述。
当用于发送上行数据的N个子帧不连续时,通常情况下参考子帧为N个子帧中的最后 一个子帧,但是用于发送上行数据的结束位置为N个子帧中最一个子帧的第二个时隙的起始边界时,最后一个子帧上的第二个时隙未发送数据,因此参考子帧对应的NDI的值或者HARQ-ACK信息的可靠性较差,为了在用于发送上行数据的N个子帧不连续、且用于发送上行数据的结束位置为N个子帧中最一个子帧的第二个时隙的起始边界时,提高参考子帧对应的NDI的值或者HARQ-ACK信息的可靠性,可选的,将N个子帧中的倒数第二个子帧作为参考子帧,或者,N个子帧中的倒数第一个子帧和倒数第二个子帧作为参考子帧,其中,倒数第二个子帧为在N个子帧中与倒数第一个子帧相邻的上一个子帧,倒数第一个子帧为N个子帧中按照时间顺序排在最后的一个子帧。
示例的,假设N的取值为6,用于发送上行数据的子帧包括n0、n1、n2、n3、n4和n5、且按照时间顺序排列,如图7所示,n1、n2不连续,其中n0为第一个子帧、n1为第二个子帧、n2为第三个子帧,n3为第四个子帧、n4为第五个子帧、n5为第六个子帧,则参考子帧可以为如图8所示的n4,或者也可以为如图8所示的n4和n5。
以参考子帧可以为如图8所示的n4为例,当终端设备根据n4对应的第一信息,调整CW的值,其中第一信息为NDI或者HARQ-ACK信息时,具体的调整CW的值的方式可参见当参考子帧如图5a所示时,调整CW的值的方式,在此不再赘述。
以参考子帧为如图8所示的n4和n5为例,当终端设备根据n4对应的第一信息和n5对应的第一信息,调整CW的值,其中第一信息为NDI的值或者HARQ-ACK信息时,具体调整CW的值的方式可参见当参考子帧如图5b所示时,调整CW的值的方式,在此不再赘述。
需要说明的是,可选的,本申请实施例中终端设备是基于第i次发送上行数据的参考子帧对应的第一信息,来调整CW1的值,得到CW2的值,其中CW1的值为第i次发送上行数据时在退避机制中判断是否能够使用非授权频谱中的资源所使用的CW的值,CW2的置为第(i+N)次需要发送上行数据时在退避机制中判断是否能够使用非授权频谱中的资源所使用的CW的值,其中i为正整数,N的取值可以1,或者大于1的正整数,N的取值还可以为多个值,例如1、2等正整数。
例如,i取值为2,N取值为1,若终端设备基于第2次发送上行数据的子帧为n0、n1和n2,参考子帧为n1,则基于n1对应的第一信息(如NDI、HQRQ-ACK信息等),来调整CW1的值,得到CW2的值,CW1的值为终端设备在第2次需要发送上行数据时在退避机制中判断是否能够使用非授权频谱中的资源所使用的CW的值,当终端设备在第3次需要发送上行数据时,可以使用CW2的值在退避机制中判断是否能够使用非授权频谱中的资源来发送上行数据。此外,N的取值为1和2时,则当终端设备在第3次和第4次需要发送上行数据时,可以使用CW2的值在退避机制中判断是否能够使用非授权频谱中的资源来发送上行数据。
上述本申请提供的实施例中,分别终端设备的执行流程上对本申请实施例提供的方法进行了介绍。为了实现上述本申请实施例提供的方法中的各功能,终端设备可以包括硬件结构和/或软件模块,以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能以硬件结构、软件模块、还是硬件结构加软件模块的方式 来执行,取决于技术方案的特定应用和设计约束条件。
基于相同的构思,图9所示为本申请提供的一种装置900,该装置900可以是终端设备,也可以是能够支持终端设备实现图3涉及的方法中终端设备的功能的装置。示例性地,装置900还可以是终端设备内的装置(如芯片或芯片系统)。需要说明的是,在本申请实施例中芯片系统可以由芯片构成,也可以包含芯片和其他分立器件。
图9所示的装置900包括处理模块901和收发模块902,其中,收发模块902用于在连续N个子帧上发送上行数据,N为大于1的正整数;处理模块901用于确定用于发送上行数据的起始位置,在所述起始位置为所述N个子帧中第一个子帧的第二时隙的起始边界时,确定N个子帧中的至少一个子帧为参考子帧,其中,第一个子帧为所述N个子帧中按照时间顺序排在最开始的子帧,所述第二个时隙为在所述第一个子帧中与第一个时隙相邻的下一个时隙,所述第一个时隙为第一个子帧中按照时间顺序排在最开始的时隙;所述参考子帧包括N个子帧中除第一个子帧以外的一个子帧。
可选的,第一子帧为N个子帧中的第二个子帧,第二个子帧为所述N个子帧中与所述第一个子帧相邻的下一个子帧。
可选的,参考子帧为N个子帧中的第二个子帧,第二个子帧为所述N个子帧中与所述第一个子帧相邻的下一个子帧。
可选的,处理模块901还用于根据第二个子帧对应的第一信息,调整竞争窗口的值;其中,第一信息为NDI,或者,第一信息为HARQ-ACK信息,竞争窗口的值用于指示终端设备接入非授权频谱时的最大退避时长。
可选的,参考子帧为N个子帧中的第一个子帧和第二个子帧,第二个子帧为所述N个子帧中与所述第一个子帧相邻的下一个子帧。
可选的,处理模块901还用于根据第一个子帧对应的第一信息和第二个子帧对应的第一信息,调整竞争窗口的值;其中,第一信息为NDI,或者,第一信息为HARQ-ACK信息,竞争窗口的值用于指示终端设备接入非授权频谱时的最大退避时长。
可选的,处理模块901根据第一个子帧对应的第一信息和第二个子帧对应的第一信息调整竞争窗口的值的一种具体实现方式为:
在第一个子帧对应的NDI和第二个子帧对应的NDI中至少一个NDI翻转时,重置竞争窗口的值;和/或,在第一个子帧对应的NDI未翻转、且第二个子帧对应的NDI未翻转时,增大竞争窗口的值。
可选的,处理模块901用于根据第一个子帧对应的第一信息和第二个子帧对应的第一信息调整竞争窗口的值的另一种具体实现方式为:
在第一个子帧对应HARQ-ACK信息和第二个子帧对应的HARQ-ACK信息中至少一个HARQ-ACK信息为确认回答ACK时,重置竞争窗口的值;和/或,在第一个子帧对应HARQ-ACK信息为否认回答NACK或非连续传输DTX、且第二个子帧对应的HARQ-ACK信息为NACK或DTX时,增大竞争窗口的值。
应理解,图9所示的装置为模块划分的方式是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。
基于相同的构思,如图10所示,为本申请提供的一种装置1000,该装置1000可以是终端设备,也可以是能够支持终端设备实现图3涉及的方法中终端设备的功能的装置。示 例性地,装置1000可以是终端设备内的装置(如芯片或芯片系统)。需要说明的是,在本申请实施例中芯片系统可以由芯片构成,也可以包含芯片和其他分立器件。
装置1000中包括至少一个处理器1010,用于实现本申请实施例提供的非授权频谱中确定参考子帧的方法中终端设备的功能。装置1000还可以包括至少一个存储器1020,用于存储程序指令和/或数据。存储器1020和处理器1010耦合。处理器1010可能和存储器1020协同操作。处理器1010可能执行存储器1020中存储的程序指令。所述至少一个存储器1020中的至少一个可以包括于处理器1010中。
装置1000中还可以包括通信接口1030,装置1000可以通过通信接口1030和其它设备进行信息交互。通信接口1030可以是电路、总线、收发器或者其它任意可以用于进行信息交互的装置。其中,示例性地,该其它设备可以是其它终端设备或网络设备。处理器1010可以利用通信接口1030收发数据,示例的,通信接口1030用于向发送上行数据,处理器1010用于确定用于发送上行数据的起始位置为第一时隙的起始边界以及参考子帧等。
本申请实施例中不限定上述通信接口1030、处理器1010以及存储器1020之间的具体连接介质。本申请实施例在图10中以存储器1020、处理器1010以及通信接口1030之间通过总线连接,总线在图10中以粗线表示,其它部件之间的连接方式,仅是进行示意性说明,并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示,图10中仅用一条粗线表示,但并不表示仅有一根总线或一种类型的总线。
应理解,图9和图10所示装置可以用于实现本申请实施例的如图3所示的非授权频谱中确定参考子帧的方法中由终端设备执行的步骤,相关特征可以参照上文,此处不再赘述。
在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时,全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、网络设备、终端设备或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line,DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质,(例如,软盘、硬盘、磁带)、光介质(例如,数字视频光盘(digital video disc,DVD))、或者半导体介质(例如固态硬盘(Solid State Disk,SSD))等。
尽管在此结合各实施例对本申请进行了描述,然而,在实施所要求保护的本申请过程中,本领域技术人员通过查看所述附图、公开内容、以及所附权利要求书,可理解并实现所述公开实施例的其他变化。在权利要求中,“包括”(comprising)一词不排除其他组成部分或步骤,“一”或“一个”不排除多个的情况。单个处理器或其他单元可以实现权利要求中列举的若干项功能。相互不同的从属权利要求中记载了某些措施,但这并不表示这些措施不能组合起来产生良好的效果。
本领域技术人员应明白,本申请的实施例可提供为方法、装置(设备)、计算机可读存储介质或计算机程序产品。因此,本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式,这里将它们都统称为“模块”或“系统”。
本申请是参照本申请的方法、装置(设备)和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管结合具体特征及其实施例对本申请进行了描述,显而易见的,在不脱离本申请的精神和范围的情况下,可对其进行各种修改和组合。相应地,本说明书和附图仅仅是所附权利要求所界定的本申请的示例性说明,且视为已覆盖本申请范围内的任意和所有修改、变化、组合或等同物。
显然,本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样,倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。

Claims (18)

  1. 一种非授权频谱中确定参考子帧的方法,其特征在于,所述方法包括:
    终端设备确定用于发送上行数据的起始位置,所述起始位置为用于发送所述上行数据的连续N个子帧中第一个子帧的第二个时隙的起始边界,所述第一个子帧为所述N个子帧中按照时间顺序排在最开始的子帧,所述第二个时隙为在所述第一个子帧中与第一个时隙相邻的下一个时隙,所述第一个时隙为所述第一个子帧中按照时间顺序排在最开始的时隙,N为大于1的正整数;
    所述终端设备确定所述N个子帧中的至少一个子帧为参考子帧,所述参考子帧包括所述N个子帧中除第一个子帧以外的一个子帧。
  2. 如权利要求1所述的方法,其特征在于,所述参考子帧包括所述N个子帧中的第二个子帧,所述第二个子帧为在所述N个子帧中与所述第一个子帧相邻的下一个子帧。
  3. 如权利要求1或2所述的方法,其特征在于,所述参考子帧为所述N个子帧中的第二个子帧,所述第二个子帧为在所述N个子帧中与所述第一个子帧相邻的下一个子帧。
  4. 如权利要求3所述的方法,其特征在于,所述方法还包括:
    所述终端设备根据所述第二个子帧对应的第一信息,调整竞争窗口的值;其中,所述第一信息为新数据指示信息NDI,或者,所述第一信息为混合自动重传请求确认HARQ-ACK信息,所述竞争窗口的值用于指示所述终端设备接入非授权频谱时的最大退避时长。
  5. 如权利要求1或2所述的方法,其特征在于,所述参考子帧为所述N个子帧中的第一个子帧和第二个子帧,所述第二个子帧为在所述N个子帧中与所述第一个子帧相邻的下一个子帧。
  6. 如权利要求5所述的方法,其特征在于,所述方法还包括:
    所述终端设备根据所述第一个子帧对应的第一信息和所述第二个子帧对应的第一信息,调整竞争窗口的值;其中,所述第一信息为NDI,或者,所述第一信息为HARQ-ACK信息,所述竞争窗口的值用于指示所述终端设备接入非授权频谱时的最大退避时长。
  7. 如权利要求6所述的方法,其特征在于,所述终端设备根据所述第一个子帧对应的第一信息和所述第二个子帧对应的第一信息,调整竞争窗口的值,包括:
    所述终端设备在所述第一个子帧对应的NDI和所述第二个子帧对应的NDI中至少一个NDI翻转时,重置所述竞争窗口的值;和/或,
    所述终端设备在所述第一个子帧对应的NDI未翻转、且所述第二个子帧对应的NDI未翻转时,增大所述竞争窗口的值。
  8. 如权利要求6所述的方法,其特征在于,所述终端设备根据所述第一个子帧对应的第一信息和所述第二个子帧对应的第一信息,调整竞争窗口的值,包括:
    所述终端设备在所述第一个子帧对应HARQ-ACK信息和所述第二个子帧对应的HARQ-ACK信息中至少一个HARQ-ACK信息为确认回答ACK时,重置所述竞争窗口的值;和/或,
    所述终端设备在所述第一个子帧对应HARQ-ACK信息为否认回答NACK或非连续传输DTX、且所述第二个子帧对应的HARQ-ACK信息为NACK或DTX时,增大所述竞争 窗口的值。
  9. 一种装置,其特征在于,包括处理器和收发器,其中,
    所述收发器,用于在连续N个子帧上发送上行数据,N为大于1的正整数;
    所述处理器,用于确定用于发送上行数据的起始位置,在所述起始位置为所述N个子帧中第一个子帧的第二个时隙的起始边界时,确定所述N个子帧中的至少一个子帧为参考子帧,其中,所述第一个子帧为所述N个子帧中按照时间顺序排在最开始的子帧,所述第二个时隙为在所述第一个子帧中与第一个时隙相邻的下一个时隙,所述第一个时隙为所述第一个子帧中按照时间顺序排在最开始的时隙,所述参考子帧包括所述N个子帧中除所述第一个子帧以外的一个子帧。
  10. 如权利要求9所述的装置,其特征在于,所述参考子帧包括所述N个子帧中的第二个子帧,所述第二个子帧为所述N个子帧中与所述第一个子帧相邻的下一个子帧。
  11. 如权利要求9或10所述的装置,其特征在于,所述参考子帧为所述N个子帧中的第二个子帧,所述第二个子帧为所述N个子帧中与所述第一个子帧相邻的下一个子帧。
  12. 如权利要求11所述的装置,其特征在于,所述处理器还用于:
    根据所述第二个子帧对应的第一信息,调整竞争窗口的值;其中,所述第一信息为新数据指示信息NDI,或者,所述第一信息为混合自动重传请求确认HARQ-ACK信息,所述竞争窗口的值用于指示所述终端设备接入非授权频谱时的最大退避时长。
  13. 如权利要求9或10所述的装置,其特征在于,所述参考子帧为所述N个子帧中的第一个子帧和第二个子帧,所述第二个子帧为在所述N个子帧中与所述第一个子帧相邻的下一个子帧。
  14. 如权利要求13所述的装置,其特征在于,所述处理器还用于:
    根据所述第一个子帧对应的第一信息和所述第二个子帧对应的第一信息,调整竞争窗口的值;其中,所述第一信息为NDI,或者,所述第一信息为HARQ-ACK信息,所述竞争窗口的值用于指示所述终端设备接入非授权频谱时的最大退避时长。
  15. 如权利要求14所述的装置,其特征在于,所述处理器,用于根据所述第一个子帧对应的第一信息和所述第二个子帧对应的第一信息,调整竞争窗口的值,具体包括:
    在所述第一个子帧对应的NDI和所述第二个子帧对应的NDI中至少一个NDI翻转时,重置所述竞争窗口的值;和/或,
    在所述第一个子帧对应的NDI未翻转、且所述第二个子帧对应的NDI未翻转时,增大所述竞争窗口的值。
  16. 如权利要求14所述的装置,其特征在于,所述处理器,用于根据所述第一个子帧对应的第一信息和所述第二个子帧对应的第一信息,调整竞争窗口的值,具体包括:
    在所述第一个子帧对应HARQ-ACK信息和所述第二个子帧对应的HARQ-ACK信息中至少一个HARQ-ACK信息为确认回答ACK时,重置所述竞争窗口的值;和/或,
    在所述第一个子帧对应HARQ-ACK信息为否认回答NACK或非连续传输DTX、且所述第二个子帧对应的HARQ-ACK信息为NACK或DTX时,增大所述竞争窗口的值。
  17. 如权利要求9至16任一所述的装置,其特征在于,所述装置为终端设备。
  18. 一种计算机存储介质,其特征在于,所述计算机存储介质上存储有程序,所述程序被处理器执行时,用于实现如权利要求1至8任一所述的方法。
PCT/CN2018/117115 2017-11-25 2018-11-23 一种非授权频谱中确定参考子帧的方法及装置 WO2019101155A1 (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201711197575.7 2017-11-25
CN201711197575 2017-11-25
CN201810151870.7 2018-02-14
CN201810151870.7A CN109842467A (zh) 2017-11-25 2018-02-14 一种非授权频谱中确定参考子帧的方法及装置

Publications (1)

Publication Number Publication Date
WO2019101155A1 true WO2019101155A1 (zh) 2019-05-31

Family

ID=66630493

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/117115 WO2019101155A1 (zh) 2017-11-25 2018-11-23 一种非授权频谱中确定参考子帧的方法及装置

Country Status (1)

Country Link
WO (1) WO2019101155A1 (zh)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017116132A1 (ko) * 2015-12-31 2017-07-06 엘지전자 주식회사 비면허 대역을 지원하는 무선 통신 시스템에서 상향링크 신호를 송수신하는 방법 및 이를 지원하는 장치
WO2017133266A1 (zh) * 2016-02-04 2017-08-10 华为技术有限公司 确定竞争窗信息的方法和装置
WO2017135674A1 (ko) * 2016-02-04 2017-08-10 한국전자통신연구원 면허 및 비면허 대역을 지원하는 네트워크에서 통신 방법
WO2017191617A1 (en) * 2016-05-06 2017-11-09 Telefonaktiebolaget Lm Ericsson (Publ) Lbt parameters for uplink in unlicensed spectrum

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017116132A1 (ko) * 2015-12-31 2017-07-06 엘지전자 주식회사 비면허 대역을 지원하는 무선 통신 시스템에서 상향링크 신호를 송수신하는 방법 및 이를 지원하는 장치
WO2017133266A1 (zh) * 2016-02-04 2017-08-10 华为技术有限公司 确定竞争窗信息的方法和装置
WO2017135674A1 (ko) * 2016-02-04 2017-08-10 한국전자통신연구원 면허 및 비면허 대역을 지원하는 네트워크에서 통신 방법
WO2017191617A1 (en) * 2016-05-06 2017-11-09 Telefonaktiebolaget Lm Ericsson (Publ) Lbt parameters for uplink in unlicensed spectrum

Similar Documents

Publication Publication Date Title
TWI716803B (zh) 一種進行混合自動重送請求回饋的方法和終端
WO2018227464A1 (en) Transmitting a beam recovery request
WO2018201450A1 (en) Indicating a beam switch request
WO2019157911A1 (zh) 波束管理方法、终端、网络设备以及存储介质
US11405939B2 (en) Scheduling request indication
US11412529B2 (en) Determining a transmission scheme
US11374697B2 (en) Feedback method, apparatus, and system
WO2016131235A1 (zh) 信息传输的方法、用户设备和基站
WO2019214684A1 (zh) 通信方法、通信装置和系统
WO2017075833A1 (zh) 信息传输的方法、终端和基站
US11172471B2 (en) Resource reservation
WO2019157919A1 (zh) 一种竞争窗管理的方法及发送设备
WO2020164503A1 (zh) 信息传输方法、终端设备及网络设备
WO2018176378A1 (en) Determining resource field that carries feedback information
CN110463337B (zh) 确定转换到连接状态
WO2019101155A1 (zh) 一种非授权频谱中确定参考子帧的方法及装置
WO2022063238A1 (zh) 传输信息确定方法、装置和终端
CN115428374A (zh) 组合的盲重传和基于反馈的重传
WO2018059228A1 (zh) 一种上行控制信息发送、接收方法及设备
WO2022121908A1 (zh) 数据接收方法、装置、终端及可读存储介质
WO2018076350A1 (zh) 确定接收状态的方法和装置
WO2023061345A1 (zh) 数据接收方法、数据发送方法及终端
WO2022142961A1 (zh) 一种终止数据传输的方法及装置
US20230199642A1 (en) Transmitting sidelink control information indicating no sidelink data
US11265806B2 (en) Determining discovery announcement pool

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18881313

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18881313

Country of ref document: EP

Kind code of ref document: A1